Diamond poweb



April 3, 192s. 1,664,859

H. c. HEATON BOILER CLEANER Filed JulylO, 1920 gmane/wkn Patented Apr. 3, 1928. u

UNITED STATES PATENT OFFICE.

HERM'AN C. HEATON, OF CHICAGO, ILLINOIS, ASSIGNOB,`BY MESNE ASSIGNMENTS, TO DIAMOND POWER SPECIALTY CORPORATION, OF DETROIT, MICHIGAN, A 'CORPORA- TION F MICHIGAN.

BOILEB CLEANER.

Application led July 10, 1980. Serial No. 395,260.

The invention relates to boiler cleaners and refers more particularly to boiler cleaners of the type in which jets of steam or'the like are discharged against the surfaces to be cleaned. In the particular construction shown in the drawings the blower unit which carries the discharge nozzle is arranged .to rotate axially. Also the invention in -its broader aspects is not limited to the particul0 lar type as illustrated.

One of the main objects of the invention is to provide a new and improved construction of automatically reversing motor for operating soot blowers and this application is 1B in part a divisional of my original application, Serial No. 333,062, tiled October 24, 1919. The invention also resides in the novel combination of the motor and blower mechanism; in the feature whereby the supply of steam to the unit is normally out 0E by an automatic valve preferably arranged in a portion of the lsupply pipe near the blower unit and so connected as to be automatically opened when the iuid is admitte to operate the motor; an'd in such other features of construction and arrangements and combinations of parts as are more fully hereinafter set forth.

In the drawings:

Figure 1 is a fragmentary vertical section through a device embodying my invention;.

` Figure 2 is a vertical section taken on the line 2-2 of Fi 1.

Describing 'in detail the construction u shown in the drawings, A designates a r0- tary blower unit having jets or nozzles A through which steam or other suitable cleaning iiuid is discharged against the boiler tube B or other surface to be cleaned. The cono struction is such that in order to direct the steam jets to clean a particular area or part of the boiler the blower A is rotated through an arc in one direction andthen reversed and rotated inthe opposite direction. For actuating the blower element and automatically reversin its direction of travel, the following mec anism is employed. Fixedly secured to the rotating unit A is a sleeve C carrying a movable abutment C', which in the operation of the device cooperates with a stationary abutment D in the casing D. The abutment D is preferably formed with passageways E and E for water, steam or other suitable fluid, these passageways each the valve F is a four-way valve and is so arranged that when the parts are in the position shown in Figure 2, its parts connect the intake E3 with the space at the right of the stationary abutment D. The pressure of the water will then force the movable abutment C to the right and thus rotate the blower unit A in a clockwise direction. The exact extent of the movement in either direction will be governed by the position of the eccentrics H and H', which eccentrics are preferably formed with split collars G, so that they can be clamped in any'position upon the unit A by the set screws G. Positioned in the path of the eccentrics H and H' is a bar I on the valve handle I.

Whenever the blower element o r unit A has reached its desired rotation in a clockwise direction the eccentric H will strike against the bar I and swing the handle I to the right. This will rotate the valve F so as to connect the passageway E with the intake and the passageway E with the exhaust and automatically reverse the direction of rotation of the blower unit A. When the unit reaches the end of its reverse travel the which the unit A is rotated can e adjusty ably controlled by a needle valve E's in the intake passage E3. The arrangement as above described is not onlysimple in construction and operation but is so arranged that it can be applied, if desired, to the usual type of rotary blower unit A.

In addition to the usual control valves the present novel mechanism includes an automatic steam control valve K which is normally pressed to its seat K bymeans of a spring K2 operating on the piston K3 secured to the valve steam K4. `The piston is arranged to reciprocate in a cylinder L, the construction being such that the valve K is normally pressed toward its seat by the spring K2 and is forced away from its seat against the tension ofv the spring K2 when ever the water or other llnid under pressure is admitted throughthe intakeconnection lila to the cylinder L. Therefore,- whenever the motor is in operation the valve K will be automatically held away :from its seat admitting the steam or other cleaning duid through the supply pipe d to the blower t its soon, however, as the water or other duid under pressure is cut od" from the motor mechanism the spring K2 will automatically torce the piston K3 forward and move the valve lli to its seat.

Wnile l have shown and described this automatic valve arrangement in connection with one particular type ci reversing meer anism, it is not necessarily' limited to the particular motor mechanism shown and lvarious changes in the details ol construction and arrangements and combinations oi parts can be made witnln the scope of my 'invention.

What l` claim as my invention is: l. The combination with a rotative blower uint, of a motor adapted to drive said unit,

a valve controlling the supply of steam or unit, et a motor 'adapted to drive said unit,

monete a valve controlling a supply of cleaning substance to said unit, a piston having actuating connection to said valve, a cylinder receiving said piston, connections for delivering a duid to said cylinder for unseatmg the valve and to said motor for rotatively actuating the same, a common control means for said connections, and means urging said valve to its seat.

3. 'llhe combination with a rotative blower unit, of a cleaning Huid :supplyV pipe connected with the unit, a Valve controlling the supply or cleaning iuid to said unit, a piston operatively connected with said valve, a duid motor for actuating the blower unit, a second duid supply pipe leading to said motor and having a pipe branched therefrom to supply fluid to said piston, a single controlling means for permittinglow of fluid causing the simultaneous motor and piston.

t. rlhe combination with a rotative'blower unit, of a cleaning Huid supply pipe for the unit, a fluid-actuated valve controlling A the flow of cleaning fluid thru said supply e pipe, -a fluid-actuated* motor for rotating said unit, a second tluid supply pipe leadin to said motor and having a pipe branched therefrom to supply fluid to said fluid-actuated valve, and asingle controlling r means permitting flow of fluid for causing the simultaneous operation of said fluid-actuated motorland said fluid-actuated valve.

ln testimony whereof l ax my signature.

HERMAN C. HEATON.

operation of the 55 

